(Cat? OR feline) AND NOT dog?
Cat? W/5 behavior
(Cat? OR feline) AND traits
Cat AND charact*

This guide provides a more detailed description of the syntax that is supported along with examples.

This search box also supports the look-up of an IP.com Digital Signature (also referred to as Fingerprint); enter the 72-, 48-, or 32-character code to retrieve details of the associated file or submission.

Concept Search - What can I type?

For a concept search, you can enter phrases, sentences, or full paragraphs in English. For example, copy and paste the abstract of a patent application or paragraphs from an article.

Concept search eliminates the need for complex Boolean syntax to inform retrieval. Our Semantic Gist engine uses advanced cognitive semantic analysis to extract the meaning of data. This reduces the chances of missing valuable information, that may result from traditional keyword searching.

Publishing Venue

Related People

Abstract

Wavelength division allows multiple parallel to be spaced more closely than the use of links allows. A single fiber or optical waveguide carry multiple channels which are distinguished by their or frequency. A multiplexer and demultiplexer required at the input and output of the link, Disclosed here is a space-efficient (or multiplexer).

Country

United States

Language

English (United States)

This text was extracted from an ASCII text file.

This is the abbreviated version, containing approximately
100% of the total text.

Wavelength Division Chip

Wavelength
division allows multiple parallel to be spaced
more closely than the use of links allows.
A single fiber or optical
waveguide carry multiple channels which are distinguished by their or
frequency. A multiplexer and
demultiplexer required at the input and
output of the link, Disclosed here is a
space-efficient (or
multiplexer).

An integrated
array of Fabry-Perot filters is placed an array
of closely spaced photodetectors (or as shown in the figure. The
detectors and are estimated to be as small as on the order of 10
Each element of the array passes a different
The filters are
identical with each other, the high reflectivity coatings on top and
bottom. The only that determines the
wavelength differentiation is
thickness of the spacer layer between the two.
This can done, for
example, by stepping a mask during deposition the spacer layer.

It may be
possible to integrate some distribution optics
lenses) into the filter construction, and it be possible to integrate
the filter construction with photodetector array. The difference in
step-heights of "stair" of filters is sub-micron and will not require
in the optics. Such a filter is more
compact the grating
multiplexers used for similar schemes, but less efficient in energy.